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Butterfly Valve Exhaust Tips--Anyone know if this would help low-end torque on

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Old Feb 2, 2004 | 02:26 PM
  #1  
John P. (TT 225)'s Avatar
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Default Butterfly Valve Exhaust Tips--Anyone know if this would help low-end torque on

225s with OEM or aftermarket exhausts?? Similar butterfly valve concept as on 3.2s, but not electronically actuated.

<img src="http://homepage.ntlworld.com/paul_scott/3.2_exhaust.JPG">
<img src="http://www.jcwhitney.com/wcsstore/jcwhitney/images/imagecache/I15842.gif">
<img src="http://www.jcwhitney.com/wcsstore/jcwhitney/images/imagecache/I22940.gif"><ul><li><a href="http://www.jcwhitney.com/webapp/wcs/stores/servlet/ProductDisplay?productId=4365&amp;catalogId=10101& amp;langId=-1&amp;storeId=10101">Turbolator @ jcwhitney.com</a></li></ul>
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Old Feb 2, 2004 | 02:29 PM
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EasTTcoasTT's Avatar
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Default I've seen these types of things for exhaust dumps...

But I think programming it to work.. would be more trouble than it's worth.
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Old Feb 2, 2004 | 03:26 PM
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hoTTub's Avatar
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Default Let me think, adding restriction to a turbo car in order to gain low end torque...

NO! =-p

Not the same concept really ;-)
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Old Feb 2, 2004 | 03:32 PM
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John P. (TT 225)'s Avatar
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Default

When people go 3" from the cat back, isn't there usually a loss at low RPMs though?
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Old Feb 2, 2004 | 04:00 PM
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Default Makes em quiet..

well at least on the 360 Stradel (sp?)..
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Old Feb 2, 2004 | 05:29 PM
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Default Before boost you would want it...

But then that would slow spool.. so I agree... all in all.. no. Better to do a precat dump.
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